The LVU40 series ultrasonic transmitters are advanced ultrasonic level measurement sensors for liquids. These products continue to meet demanding applications. The microprocessor-based circuits provide a temperaturecompensated signal for improved accuracy. All models have the ability to filter false echoes produced by peripheral obstructions. Continuous level measurement can be provided in a range of 0.3 to 18.3 m (1.0 to 60') with several power and programmability options. Point level can also be obtained using a PLC (Industrial Programmable Controller) or one of OMEGA’s CNI process controllers.
SPECIFICATIONS Accuracy: ±0.25% of max range (in air) Range: 0.3 to 18.3 m (1 to 60') Resolution: 6.9 mm (0.270") Frequency: 45 kHz Dead Zone Range: 0.3 m (1') Operating Temperature Range: -40 to 60°C (-40 to 140°F) Pressure: 1 bar (15 psig max) Mounting: 3 NPT Beam Angle: 6 to 12° at -3 dB (model dependent) Loss of Echo Hold: 30 seconds, 22 mA output Power Options: AC: 115 Vac, 60 Hz or 230 Vac, 50 Hz (±20%) 1.7 VA DC: 12 to 30 Vdc @ 0.07 A, @ 24 Vdc R load = (Vs – 6)/24 mA Output: 4 to 20 mA or 20 to 4 mA, 6.1 µA resolution